FishBase |
Main Ref: | Renaud, C.B. 2011 |
max | min | mod | Ref. | |
Length at birth (mm) | 4.2 | 3.3 | ||
Preanal L. % TL |
Place of development | in close association with substrate | |||
Larval area | freshwater | |||
Yolk-sac | Ref: | |||
Yolk | Oil globules | |||
Ammocoetes hatch 8-10 days after fertilization. Three to four days after hatching, the yolk sac is almost completely absorbed (Ref. 89241). |
Striking feature | ||||
Striking shape lateral | dorsal | |||
Striking feature | ||||
Shape of gut | ||||
Gas bladder early | late | |||
Spinal armature early | late | |||
Ammocoetes: max. size 13 cm TL; body proportions, as percentage of TL (based on 300 specimens measuring 2.5-12.5 cm TL): 5.4-6.6 prebranchial length, 11.1-12.3 branchial length, 54.9-55.9 trunk length and 24.8-27.1 tail length; trunk myomeres, 53-68; body coloration light gray; caudal fin shape, spade-like. Metamorphosing ammocoetes: 8-11 cm TL (Ref. 89241), ammocoete stage lasts 2-4 years in freshwater (Ref. 59043). |
L 1st feeding | Ref. | Months of presence of larvae | ||||
max | Jan | Feb | Mar | Apr | ||
min | May | Jun | Jul | Aug | ||
mod | Sep | Oct | Nov | Dec |
Water parameters Metric characters |
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